Level 9 - f0x3rr

Challenge

You are given a website

Solution

In the website, f0x3rr is a endpoint

Click Download and a file will be downloaded

Convert this decimal to string using online converter and you’ll get a github and in the issue section there will be a password hidden in the conversation

Password is zero-day

When you visit the endpoint, click the download button and you’ll Zypher event poster

Scan the QR code and you’ll get a base64 encoded string, decode it and you’ll get a link an endpoint /vitcyscomzypher

Go to the endpoint and download the file

Convert the binary to string

Decoding the Caesar cipher

Flag

zyp{language_en}